Concrete-mold.



C. WLJONES. CONCRETE MOLD.

APPLICATION man FEB. 14. 1913.

Lmwk I Patented Aug. 3, 1915.

6 SHEETS-SHEET I- Witnesses Inventor by Attorneys C. W. JONES.

CONCRETE MOLD. APPLICATION FILED FEB. I4. I9I3.

14.148,51?. I v Patented Aug. 3, 1915;

6 SHEETS-SHEET 2r Zag J @V64 Z5 j y J6' A Witnesse? J entor fhwww u.. D Attorneys C. W. JONES.

CONCRETE MOLD.

APPLICATION FILED FEB. 14. 191,3.

lnvento 6 SHEETS-SHEET 3.

Patented Aug. 3, 1915.

Attorneys C. W. JONES.

CONCRETE MOLD.

APPLICATION FILED FEB. 14. 191s.

Patented Aug. 3, 1915.

. dw miie@ Witnesses Inventor 1 C. W.Y.IONES.

CONCRETE MOLD. APPLICATION menus. 14. 1913.

1,1%5 l 7.. 1 Patented Aug. 31915 6 SHEETS-SHEET 5.

Jgd/IZ,

c.w.E JONES.

CONCRETE MOLD.

APPLICATION man FEB. 14, 191s.

lpm '7., Patented Aug. 43, 1915.

SHEETS-SHEET 6.

Y i fj j fWZfJM/Z; r"` wir i 1 lnventr Attorneys A CHARLES W. JONES, 0F CHARLOTTE, NORTH CAROLINA.

CONCRETE-MOLD.

Specification. of Letters Patent. j Pgmtentd Aug 3, 1915.

Application filed February 14, 1913. Serial No. 748,115.2.

To all whom t may concern:

Be it known that I, CHARLES W. JoNEs, a citizen of the United States, residing at Charlotte, in the county of Mecklenburg and State of North Carolina, have invented a new and useful Concrete-Mold, of which the following is a specification.

The device forming the subject matter of this application is a machine adapted to be employed in the making of concrete bricks of arched or Ushape.`

By wayof explanation it may be stated that the difficulty attendant upon the manufacturel of a brick which will conform to specifications, does not reside solely upon a proper compounding of the ingredients of the aggregate. No matter how carefully and conscientiously lthe aggregate may be compounded, the brick will fail upon inspection if the aggregate is not properly deposited in the mold, andif the mold is not water-tight- Thus, if the aggregate is first dropped to the bottom of the mold and lthen pushed laterally, the heavier portions of the aggregate will remain where deposited and the product will not be` homogenous; Further, if the brick is formed in an `inverted position, the mixture must be made richer,\in order to secure a bonding in the intermediate portion of the brick and below the lower end ofthe core block. If the mold leaks adjacent its.` corners, the corners of the brick will be imperfect and the liquid will leak away, carrying with it portions of the cement, the entire brick'being weakened, even though the ingredients, in the first instance, have been compounded with the Autmost care. Further, owing to the factthat bricks of different configurations are called for by the specifications, owing to the fact that'the bricks-frequently vary in color and in finish, as called for by the specifications, the manufacture of bricks to meet different specifications has been a matter fraught with much inconvenience and expense. Fora small and unimportant structure, a brick of one sort may bev demanded, and for a high structure, involving much weight, a brick of another sort may be demanded, and between these two extremes lie other grades and forms all of which, the brick lmanufacturer* must be able to produce.

One object of the `present invention, generally considered, is to provide a brick machine adapted toturn out, with minor interchange of parts, concrete or monolithic bricks `which will conform to specifications of any sort. p

Another object of the invention is to provide a device of this type in which the corners of the compartments will be closed water-tight.

It is within the scope of the invention to provide a machine of the type above mentioned, in which, by a simple'interchange of elements, or by an adjustment of parts, the dimensions and the contour of the bricks may be varied'.

With 4the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in thevdetails of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, 'can be made within the scope of' what is claimed, without departing from the spirit of'the invention.

In the accompanying drawings z-Figure lshows the invention in top plan; Fig. 2 is an end elevation; Fig. 3 is a fragmental section von the line 3--3 of Fig.,1; Fig. 4 is a perspective of one of the actuating wedges; Fig. 5"is a fragmental topV plan, parts being sectioned; Fig. 6 is a transverse section on the line 6-6 of Fig. 5; Fig. 7 is a transverse section onV the line 7 7 of Fig. 5; Fig. 8 is a section on the line-8%?) of Fig. 5; Fig. 9 is a perspective showing a portion of one of the side walls; Fig. 10`is'a perspective of one of the cleats; Fig. 11 is a per-l spective of one ofthe clips which connect the guide fbars; Fig. 12 is a perspective 'showing one of the spears; Fig. 13 is a perspective showing one of the studs which cooperates with the core blocks; Fig. 1 4 is a perspective lo f the `structure shown in Fig. 13; Fig. 15 isa fragmental longitudinal sectionl through" a pair of adjacent molds; Fig. 16 is a perspective of one of the spears; Fig. 17 iis la Vperspective showing one of the division plates, together with the means whereby the same is supported; Fig. 18 is a top plan of one division plate and attendant parts; Fig. 19 is a perspective showing the lower portion of one division plate; Fig. 20

is a perspective of the bottomplate; Fig.- 21 is a perspective of the end plate; Figi 22 is a perspective of one core block; Fig. `28 is a perspective of the iinished product; Figli 1.99 the outer walls .1 and the inner walls 8, the

24 yis sectional detail showing a mechanismemployed in the making of a faced brick; Fig. 25 is a vertical longitudinal section of the coperating plates shown in Fig.

24; Fig. 26 is a perspective of one of the plates shown in Fig. 25; Fig. 27. is a perspective of the other plate shown in Fig. 25; Fig. 28-isf-a top plan of an auxiliary structure employed in varying the contour ofthe brick; Fig. 29 is a side elevation of the structure shown inFig. 28; Fig. 30 is a perspective of the structure shown in Fig. 28; Fig'. 31is a transverse section showing an element-employed in modifying the contour of the brick; F ig'. 32 is aside elevation of the structure' shown in Fig. 31; Fig. 33 is a perspective of the structures shown in Figs. 31 and l32; Fig. 34 is a sectional elevation yshowing an auxiliary mechanism employed in rounding one-edge of the brick;` F ig. 35

, is a sectional detail of the structure shown in 34; Fig. 36 is a fragmental perspective of an element which is employed in modifying the contour of the brick; Fig. 37 is a top plan of the structure shown in Fig. 36; Fig. 38 is a `side, elevation of the structureshown in Figs. 36 and 37 Fig. 39 is a top plan illustrating a modilied form of the invention; Fig.. 40 is a vertical longitudinal section of the structure shown in Fig. 39;

v Fig. "41 is a perspective showing one of the spears; Fig. 42 is a fragmental horizontal sectionv showing. a portion of one of the spears in operative relation to other parts of thenold; Fig. 43 is a fragmental side elevation of the auxiliary supports; Fig. 44 is a transverse section of the structureshown lff'Fig-f43; Fig. 45l is a perspective of the structure shown in Fig. 43; and Fig. 46 is .their outer surfacesand adjacent their ends with posts 2. The posts 2 are connected by tie rods 3 and lever nuts 4 aremounted on the tiefrods 3 so as to move the outer walls ljstoward each other. Projecting laterally from theouter walls 1 are standards 5, re-

- vceiving truss rods 6, the ends of which are mounted, in theouter walls 1 and are held spacing b lvocksdlO being alined with the tie rods 3, soj as to receive the compressive effort ofthe lever nuts 4; Secondary spacing blocks-11t arelocated between the walls 1 and 8,'Qthe spacxlgblocks 11 beingalined.

with the standards 5, so as to receive the thrust of the standards. The spacing blocks 1() and 11 may be secured to the outer wall 1 or to the inner wall 8,v or the spacing blocks may be secured to neither of these parts. ledges 14 are introduced between the walls 1 and 8, any number of wedges beingfprovided, and the wedges being located as may be found expedient. The wedges 14 coperate with the beveled faces 9 of the inner walls 3.

The foregoing description covers substantially the lconstructionof the frame inwhich the molds are located. In the fashioning of the molds, any desired number of side walls 15 are provided, the walls 15 being located between the inner walls 8 and being disposed parallel thereto.

Referring particularly to Figs. 6, 7, S and 9, it will be observed that the walls 15 upon both sides and adjacent their lower edgesare provided with longitudinally extended, triangular beads 16 which terminate short of the ends of the walls 15. Located upon both faces of the side walls 15 and disposed adjacent the ends of the beads 16 are upright, triangular beads 17. There are openings 18 in the beads 16.

Spears 19, oneV of which is shown in Fig. 12, are provided, each spear 19 comprising a reduced head 20 corresponding in outline to the transverse sectionof the lower edge of the side wall 15, and shaped to receive the longitudinal beads 16. The spears 19 include spaced arms 21 and these arms 21 as indicated at 22, are of V-shape in cross section, the arms at their upper ends being pointed as indicated at 21. The spears 19 are straddled upon the lower edges ofthe side walls 15, and each arm 21 lies between adjoining walls 15.

- Spears 23 are provided, as shown in Fig. 16, each spear 23 comprising a head 24 and arms 25. The spears 23 are straddled upon the lower edges of the side walls 15, the arms 25 lying against opposite faces of each wall 15.

rllhe invention further includes a plurality of core blocks 26, the core blocks 26 being positioned in oppositely disposed relation, and in pairs, between adjacent side walls 15, as will be understood best when Fig. 5 is examined. In the inner, abutting faces of the core blocks 26 there are upright grooves 27. The V-shaped arms 21 of a pair of spears 19 lie in the grooves 27, the upper ends of the grooves 27 being pointed, as indicated at 28 to receive the pointed ends 21 of the arms 21. The spears 23, hereinbefore referred to, lie beyond the upright end faces of the blocks 26. Upright cleats 29, one of which is shown in Fig. 10` are secured to the blocks 26, the cleats 29 being provided at their lower ends with approaching, angularly disposed tongues 30 which lie beneath the core blocks 26. The tongues 30 rest upon the beads 16, as clearly shown in Fig. 7, and serve to support the core blocks.

The lower end of each compartment is formed by a bottom 31 having at one end a reduced tongue 32, provided with a rectangular opening 33. A plurality of studs 34 are provided, the same having reduced necks 35, secured to plates 36 provided with clips 37. rIhe studs 34 are passed upwardly through the openings 33 in the plates 31 until the necks 35 are alined with the plates 31 and then the studs are rotated, so that the diagonal of each stud is parallel to any side of the opening 33, thereby locking the parts together. The upper ends of the studs 34 register between the arms 21 of the spears 19 and the clips 37 lie between the beads 16 as will be understood best when Fig. 8 is eX- amined. In the longitudinal edges of the plates 31 there are shallow notches 38,adapt ed to receive the arms 25 of the spears 23. The arms 25 of the spears 23 pass upwardly through the openings 18 in the beads 16. Located between each pair of side walls 15 is a frame comprising guide bars 40, the guide bars 40 being of V-shape in cross section, so as to engage with the beads 16. The guide bars 40 lie between the beads 16 and clips 37, as will be understood readily from Fig. 8, the bottom plates 31 being supported upon the guide bars 40. The guide bars 40 preferably are co-eXtensive in length with the mold. The guide bars 40 are connected at their ends by resilient clips 41, one of which is shown in Fig. 11.

The space between each pair of side walls 15 is sub-divided into a plurality of molds by means of intermediate division plates 42 (see Fig. 17 It will now be understood, referring to Fig. 15 and comparing the same with Fig. 20, that the bottom 31 extends' from the stud 34 to the division plate 42. Two bottoms are provided for each compartment, as Fig. 15 will make manifest. Each division plate 42 is provided at its lower end with a reduced neck 43, the edges of which are notched as indicated at 44 to receive guides 45 which, in cross section, are V- shaped. The guides 45 are mounted to slide upon the guide bars 40. The guides 45, as shown in Fig. 18, are connected by a web 46. Secured to the web 46 is an angle bracket 47 attached to the neck 43 by means of a bolt 47EL or other connection adapted to a like end. Referring to Fig. 18 and observing the point at which the reference character 48 is applied, it will be noted that the outer edges of the guides are dished inwardly. A four-point support for each division plate 42 is provided, the four points of the support being at or adjacent to the ends of the guides 45, as indicated at 49.' The end plates of each line of molds are indicated at 50, and one of them is shown in Fig. 21.

Each end plate 50 is provided adjacent its top and its bottom with clips 52 which receive the upright beads 17 on the division plates 15. rIhe end plate 50 terminates in a reduced tongue 51, notched in its edges to receive a foot 53, coperating with the beads 16. In its general construction, the foot 53 resembles the guides 45, saving for the fact that the foot 53 extends to one side only of the terminal division plate 50.

The finished product is shown in Fig. 23 and is denoted by the numeral 54, the same being of U-shape in general outline and comprising a head 55 and arms 56 provided in their outer faces with grooves 57 constituting mortar clenches.

In practical operation, any desired number of side walls 15 are placed between the inner walls 8. The frames comprising guide bars 46 and the connecting clips 41 are assembled with the beads 16 as shown in Fig. 8. The bottom plates 31 rest upon the guide bars 40 and the studs 34 project, through the openings 33, the clips 37 being engaged between the guide bars 40. rIhe spears 19 are mounted in place, and the arms 21 of the spears project into the grooves 27 of the core blocks 26, the core blocks 26 being supported upon the beads 16 through the ins/trumentality of the cleat 29, the core blocks lying above the bottom plates 31. The ag gregate is then introduced into all ofthe molds, and the product 54 shown in Fig. 23 will result. The division plates 42 form the upright end walls of the arms 56 of the product. the core blocks 26 form the arch in the brick, and the arms 25 of the spears 23 form the motor-clenching grooves 57.

Owing to the fact that the guides 45 are slidably mounted upon the bars 40, the division plates 42 may be adjusted with respect to each other to determine the length of the brick. It is obvious, referring to Fig. 20, that one bottom plate 31 may be removed, and be replaced by a longer bottom plate.

Owing to the fact that a four-point support, indicated at 49, is provided for the division plates 42, these plates cannot tilt. As a consequence, adjacent plates 42 will be the same distance apart at the top as at the bottom, and the upright edges of the brick will be parallel.

It is to be observed that the brick is fashioned in the machine, in the position shown in Fig. 23, head 55 of the brick being uppermost and the arms 56 of the brick being in depending position. Especial attention is directed to this feature. Since the brick is fashioned in the position indicated iu Fig. 23, a homogenous product is theresult.

Owing to the fact that the brick is fashioned as shown in Fig. 23, instead of in an inverted position, the aggregate does not fall to the bottom of the mold and then flow sov lio

i of the mold. No matter how accurately the j brick may be formed, if there is any leakage at the'corners of each mold compartment, the brick will be imperfect along its edges, and the entire brick will be weakened,

, because the cement, held in suspension, will fiow away.

By manipulating the lever nuts 4, the ends of the walls 1 may be forced toward each other. The wedges 14 may be inserted at any desired points, and as a consequence, all of the side plates 15 will be forced firmly against the edges of the division plates 42, thus making each mold compartment absolutely watertight and preventing any leakage adjacent the corners. If desired, the walls 15 may be fashioned from wood and the division plates 42 may be fashioned from metal, and when transverse pressure is applied, as hereinbefore described, the closures will be so complete at the corners of each mold compartment, that a leakage will be prevented absolutely.

At times, it is desirable to face the brick with a material different from that of which the body portion of the brick is made. Under such circumstances, the structure shown in Figs. 24, 25, 26 and 27 is employed. Referring to these figures, a pair of plates 58 and 59 are shown, the plate 58 being provided with studs 60 andthe plate 59 being provided with diagonal slots 61, adapted to receive the studs. Adjacent their upper ends, the plates 58 and 59 are provided with sockets 62 and in the sockets 62 are mounted bars which may be channel beams 63 and 64. A U-shaped guide 65, or several guides,

are secured to the channel beam 63 and are slidably engaged with the channel beam 64.

In practice, the plates, constructed as above described, are placed within the mold compartments, between the walls 15 and in comparatively close relation to the division walls 42. Then, by producing relative movement between the bars 63 and 64, the plates 58 and 59 will move laterally with respect to each other. Owing to the coperation between the studs 60 and the slots 61, the space between the walls 15 is thus closed. The common material employed for making the body portion of the brick isl placed to one side of the plates 58 and 59 and the facing is placed upon lthe other side of the plates. The plates may then be removed, whereupon the facing and the body portion of the brick will coalesce and form a monolithic structure.

By the operation above described, the brick may be faced in any desired manner and the cost of the brick will be reduced materially, owing to the lfact that the major portion of the brick is fashioned from a common and ordinary aggregate.

At times it is desirable to round the outer faces of the arms 56 of the brick. Under such circumstances, the structure shown in Figs. 28, 29 and 30 is employed. Referring to these figures, a pair of convexed plates 66 are shown, the same being connected adjacent their ends by top strips 67. One of the curved plates 66 is equipped at its lower end with a depending, slotted iinger 68. The division plate 42 is placed between the curved plates 66, and the plates 66 are held in position by engaging the slotted finger 68 with ythe bolt 47a.

When it is desired to bevel the outer faces of the arms 56 of the brick, the structure shown in Figs. 31, 32 and 33 is resorted to. In these figures there is shown a tube 69 having straight sides, there being an arm 7 0 projecting inwardly from the lower end of one of the straight sides of the tube, the arm 70 terminating in a slotted finger, adapted to be engaged by the bolt 47 as before. The upper end of the tube 69 is closed by a plate 72 and adjacent its diagonal longitudinal edges, the tube 69 is slotted as indicated at 73 to receive the division plate 42. The tube will thus be held in such a position that, when the aggregate is introduced into the mold compartments, a bevel will be formed upon the brick.

`When it is desired to round the corners only of the brick, the structure shown in Figs. 35, 36 and 37 is employed. Referring to these figures, a pair of parallel plates 74 are provided, the same being connected at their upper ends by a closure 75. The longitudinal edges of the plates 74 iare and are rounded, as indicated at 76, and one of the plates is provided with a slotted finger 77 adapted to receive the bolt 47a. The division plate 42 enters the space existing between the plates 74. y

Should it be desired to round the upper edge of the body portion 55 of the brick, referring to Fig. 23, the structure shown in Fig. 34 is resorted to. The intermediate walls, corresponding to the walls 15, are indicated by the reference numeral 78. A cross bar 79 extends above the walls 78 and through the cross bar 79 are passed bolts 8O or the like, connected with a lower cross bar 81. Angle bars 82 are applied to the bar 79 and these angle bars 82 constitute guides adapted to receive clips 83 secured to curved caps 84. Triangular beads 85 are secured to the upper edges of the walls 78, these beads acting as guides, adapted to direct the lower edges of the curved caps 84 into the mold compartments and between the walls 7 8. j

Figs. 39 to 46 illustrate a means whereby the dimensions of the bricks may be changed, in a direction parallel to the arms 56, it being possible to fashion bricks of different dimensions in a single machine. Re ferr-ing to these iigures, the side walls are indicated at 86. These walls are of the same construction as the walls 15, saving for the fact that the walls 15 are of a height adapted to form a standard brick, whereas, in Figs. 39 and following, the walls 86 are of a height sufficient to form a brick larger than standard dimensions. rlhe walls 86 are provided at their upper edges with the triangular beads 88 hereinbefore mentioned in connection with Fig. 34, the lower edges of the walls 86 being provided with the beads 88 hereinbefore described in connection with Fig. 9. The core blocks are indicated at 89 and are provided in their adjacent faces and in their lower ends with recesses 90 adapted to receive the studs 91, interlocked as hereinbefore described, with the bottom 92, the studs 91 being provided with clips 93, engaging the guide rods 94, the guide rods being assembled with the beads 88.

In that form of the invention first described, two forms of spears were employed, namely, the spear shown in Fig. 16 and the spear shown in Fig. 12. In the form of invention under discussion, but one form of spear is used and that form of spear is indicated by the reference character 95 and is shown in Fig. 41. Thel spear comprises a head 96 adapted to embrace the beads 88, and arms 97. The arms of one pair of spears are engaged between plates 98 and the core blocks 89, the plates being secured to the core blocks, and the parts appearing substantially as shown in Fig. 42. Another pair of spears is employed in forming the mortar clenching grooves 57 (see Fig. 23).

A plurality of sub-bases 99 are provided, the bases 99 being longitudinally grooved in their outer edges, as indicated at 100, to receive the beads 88. As shown in Fig. 40,

a single sub-base 99 may be mounted upon the beads 88, the guide rods 94, the core blocks 89 and attendant parts being elevated. As shown in Fig. 40, one sub-base 99 after another may be added, elevating the core blocks and attendant parts to the desired extent, the core blocks sliding upwardly upon the arms of the spears 95, the arms of the spears extending upwardly to a point adjacent the upper edges of the walls 86. Near their ends, or elsewhere, the subbases 99 may be recessed as indicated at 101, to receive clips 102, to the end that groups comprising any desiredfnumber of sub-bases may be formed.

lt is entirely obvious from the foregoing description that by successively introducing the sub-bases 99, the dimensions of the bricks may be changed.

From the entire foregoing description it will be seen that it is possible not only to turn out a brick of standard size but, as well, to vary the'contour of the brick and to face the brick when desired. Y

Comparing Figs. 34 and 30, the caps 84 are used with the plates 66. When the members 74 or 69 are used, thecaps 84 will be shaped accordingly. j

Having thus described the invention, what is claimed is p i ,s

1. ln a device of the class described, side walls; division plates located between the side walls; a guide frame upon which the division plates are mounted to slide to adjust the space between the division plates; and interengaging elements upon the side walls and upon the guide frame.

2. In a device of the class described, side walls; a guide frame disposed between the side walls; interengaging elements upon the guide frame and upon the side walls; guides engaging the guide frame adjacent their ends, to form a four-point support; and a division plate located between the side walls and supported by the guides.

3. In a device of the class described, side walls provided with beads along their lower edges; a bottom supported by the beads; a core block disposed between the side walls; and a stud interlocked with the bottom and engaging the core block, the stud having means for interlocking with the beads.

4. In a device of the class described, side walls; a guide frame; interengaging elements upon the side walls and the guide frame; a bottom resting on the guide frame; a division plate slidable on the guide frame; a stud interlocked with the bottom: and having means for engaging the guide frame; and a core block into which the stud projects.

5. In a device of the class described, side walls; a bottom coperating therewith; divi! sion plates located between the side walls and defining compartments; a core block disposed in each compartment; and a spear engaged around the lower edge of the side wall, the spear comprising arms lying against opposed faces of the said side wall, each arm constituting a groove forming means in one compartment, beyond one end of the block.

6. ln a device of the class described, side walls; division plates therebetween; a bottom between the side walls; a core block above the bottom and between the side walls; a U-shaped spear engaging around the lower edge of one side wall and engagu ioy ing With theblock; and ay U-shaped spear engaging around the lower edge of one side Wall andv bearing against the inner face of saidside -ivallfbeyond the end of the block.

7. In ay device of the class described, side Walls; a guide frame located therebetween; a guide mounted to slide on the guide frame; a division plate carried by the guide; a member adapted to be plaeed'about the divi- 'sion plate,v to alter the contour of the product adjacent the division plate; and a single means' for Connecting the division plate and said member to the guide.' .8. In a deviceof the class described, side 'vv/alls; core blocks located between the side Walls;y a support for the core blocks; a, subbase; and interengaging elements upon the sub-base and the side Walls, and upon the supporting means and the side Walls, Whereby the supporting means and sub-base may be connected With the Side Walls, the subbase constituting a means for elevating the core blocks.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two Witnesses.

CHARLES W. JONES.

Witnesses:

SELINA WILLsoN, E. SIMPSON.

Copiesrof this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

- Washington, D. C. 

